Home / 117,512,191.80-176,268,287.70-81,232,486.20

Finding the Fourth Proportional to 117,512,191.80, 176,268,287.70 and 81,232,486.20

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Solution

The fourth proportional to 117,512,191.80, 176,268,287.70 and 81,232,486.20 is: 121,848,729.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,512,191.80 : 176,268,287.70 = 81,232,486.20 : x
  2. Step 2: Convert to fraction form
    117,512,191.80/176,268,287.70 = 81,232,486.20/x
  3. Step 3: Cross multiply
    117,512,191.80x = 176,268,287.70 × 81,232,486.20
  4. Step 4: Simplify right side
    117,512,191.80x = 14,318,711,248,087,880
  5. Step 5: Solve for x
    x = 14,318,711,248,087,880/117,512,191.80
  6. Step 6: Final answer
    x = 121,848,729.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.